@charset "utf-8";
/* #top_bar 的 font-size:50px; 改就能改整體大小 */

#top_bar { z-index:5; font-size:45px; bottom:0; right:0;}

#top_bar > a{ position: absolute;right:0.1em;bottom:0.1em; text-align:center;
	opacity:0.3;
    display:block;
    width: 1em;
    height: 1em;
    background: #000;
    border-radius: 0.2em; color:#FFF;
}
#top_bar > .top_bar::before{content:" ";display:block;width:0;height:0;line-height:0;margin:0.15em auto 0.07em auto;border:0.25em solid #FFF;border-top: none; border-left-color: transparent; border-right-color: transparent;}
#top_bar > .top_bar::after{content:"TOP"; display:block; font-size:0.35em;}
#top_bar > a:hover{opacity:0.6;}
#top_bar .top_bar{border-radius: 0.2em;}